ice water, then using your hands, lightly toss the mixture several times to distribute water evenly. Tossing constantly with a fork, drizzle in ⅓ cup plus 1 Tbsp.
Toss grated butter to coat, then, using your fingers, work butter into dry ingredients, smashing until the largest pieces are about the size of a lentil.
Toss butter in dry ingredients to coat, then working quickly, grate butter on the large holes of a box grater into the bowl. Pastry Dough Whisk flour, sugar, and salt in a large bowl to combine.
